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Homework Help: Fluid dynamics quick question

  1. Apr 12, 2013 #1
    I understand everything up to B). I believe Bernoulli's is applicable here, however I am unsure as to whether or not the pressure before the tube (pgh) is the same or different as the pressure at the tube pgh +p0. I ask the same question for the opposite end of the tube.
    I know that pressure is constant along a horizontal line however at the tube the water is open to the atmosphere and thus experiences that pressure, and also has a higher depth than before the tube.
     

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  3. Apr 13, 2013 #2

    tiny-tim

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    hi fobbz! :smile:
    that's correct …

    Bernoulli's equation is valid along any streamline, and that horizontal line is a streamline

    (that open vertical tube would only make a difference if it caused the streamline to be no longer horizontal)
     
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